• 2325 Citations
  • 21 h-Index
1987 …2020

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Article
1987

Current distribution in a moving spot flux pump

Mawardi, O. K. & Ko, T. K., 1987 Mar, In : IEEE Transactions on Magnetics. 23, 2, p. 584-586 3 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)
1989

Parametric Representation of a Superconducting High-Current Generator

Ko, T. K. & Mawardi, O. K., 1989 Sep, In : IEEE Transactions on Magnetics. 25, 5, p. 4346-4349 4 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)
1995
5 Citations (Scopus)
1996
9 Citations (Scopus)

The analysis of the temperature characteristics of the superconducting winding in the case of fast quench

Lee, S. J., Oh, Y. S. & Ko, T. K., 1996 Jan 1, In : Applied Superconductivity. 4, 1-2, p. 53-60 8 p.

Research output: Contribution to journalArticle

The evolution of quenches in superconducting parallel bifilar winding by fault current

Lee, S. J. & Ko, T. K., 1996 Dec 1, In : IEEE Transactions on Applied Superconductivity. 6, 2, p. 57-61 5 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
1997

Novel design and operational characteristics of inductive high-Tc superconducting fault current limiter

Joo, M. & Tae Kuk, K., 1997 Jan 1, In : IEEE Transactions on Applied Superconductivity. 7, 2 PART 1, p. 1005-1008 4 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)

Quench evolution of YBCO ring based on weak link model

Joo, M., Lee, C. J. & Ko, T. K., 1997, In : IEEE Transactions on Applied Superconductivity. 7, 2 PART 1, p. 195-198 4 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)
1 Citation (Scopus)
6 Citations (Scopus)
1999

Analysis of the operational characteristics of a heater-trigger type high-Tc superconducting power supply

Yoon, Y. S., Lee, S. J., Kim, H. M. & Ko, T. K., 1999 Dec 1, In : IEEE Transactions on Applied Superconductivity. 9, 4, p. 4708-4714 7 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
1 Citation (Scopus)

Dynamic performance and design of a high-Tc superconducting synchronous motor

Joo, M. & Ko, T. K., 1999 Dec 1, In : IEEE Transactions on Applied Superconductivity. 9, 2 PART 1, p. 1245-1248 4 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Improvement on current limiting performance of current limiting devices with damping coils

Joo, M. & Ko, T. K., 1999 Jan 1, In : IEEE Transactions on Applied Superconductivity. 9, 3, p. 4613-4618 6 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

The design, manufacture and characteristic experiment of a small-scaled high-Tc superconducting synchronous motor

Song, M., Yoon, Y. S., Jang, W. K., Ko, T., Hong, G. W. & Jang, I. B., 1999 Dec 1, In : IEEE Transactions on Applied Superconductivity. 9, 2 PART 1, p. 1241-1244 4 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

The response characteristics of cowound voltage sensors in cable-in-conduit conductor

Chu, Y., Kim, H. M., Ko, T. K. & Kim, K. M., 1999 Dec 1, In : IEEE Transactions on Applied Superconductivity. 9, 2 PART 1, p. 1157-1160 4 p.

Research output: Contribution to journalArticle

2000

Design, fabrication and testing of a heatertrigged hightc superconducting power supply

Yoon, Y. S., Lee, S. J., Han, T. S., Kirn, H., Lee, C. Y., Chu, Y. & Ko, T. K., 2000 Mar 1, In : IEEE Transactions on Applied Superconductivity. 10, 1, 1 p.

Research output: Contribution to journalArticle

Design and characteristic analysis of active quench protection system for superconducting magnet

Chu, Y., Kim, H. M., Jang, M. H., Kim, K. M. & Ko, T. K., 2000 Nov, In : Physica C: Superconductivity and its applications. 341-348 (IV), p. 2605-2606 2 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

KSTAR project: An advanced steady state superconducting tokamak experiment

Lee, G. S., Kim, J., Hwang, S. M., Chang, C. S., Chang, H. Y., Cho, M. H., Choi, B. H., Kim, K., Cho, K. W., Cho, S., Choh, K. K., Choi, C. H., Choi, J. H., Choi, J. W., Choi, I. S., Do, C. J., Ha, T. H., Han, J. H., Hong, J. S., Hong, K. H. & 115 others, Hur, N. I., Hwang, I. S., Im, K. H., Jhang, H. G., Jung, Y. S., Kim, B. C., Kim, D. L., Kim, G. H., Kim, H. S., Kim, J. S., Kim, J. Y., Kim, W. C., Kim, Y. S., Kwon, K. H., Kyum, M. C., Lee, B. J., Lee, D. K., Lee, H. G., Lee, J. M., Lee, S. G., Na, H. G., Oh, Y. K., Park, J. H., Ri, H. C., Ryoo, Y. S., Song, K. Y., Yang, H. L., Yang, J. G., Yoo, B. J., Yoo, S. J., Yoon, N. S., Yoon, S. B., You, G. H., You, K. I., Choe, W., Choi, D. I., Jeong, S. G., Lee, D. Y., Bae, Y. S., Kang, H. S., Kim, G. N., Ko, I. S., Namkung, W., Oh, J. S., Bae, Y. D., Cho, Y. S., Hong, B. G., Hong, G., Hwang, C. K., In, S. R., Ju, M. H., Lee, H. J., Oh, B. H., Yoon, B. J., Baang, S., Choi, H. J., Hwang, J., Kim, M. G., Kim, Y. J., Lee, S. I., Yee, J., Yoon, C. S., Chung, K. H., Hong, S. H., Hwang, Y. S., Kim, S. H., Kim, Y. H., Chung, K. H., Lim, J. Y., Ha, D. W., Oh, S. S., Ryu, K. S., Wang, Q. L., Ko, T. K., Joo, J., Suh, S., Choi, C. H., Lee, J. H., Lee, Y. W., Shin, H. S., Song, I. H., Baek, J., Han, I. Y., Koh, Y., Park, P. Y., Ryu, C., Cho, J. J., Hwang, D. M., Kim, Y. S., Schmidt, J. A., Park, H. K., Neilson, G. H., Reiersen, W. T., Simmons, R. T., Bernabei, S., Dahlgren, F., Grisham, L. R., Jardin, S. C., Kessel, C. E., Manickam, J., Medley, S. S., Pomphrey, N., Sinnis, J. C., Brown, T. G., White, R. B., Young, K. M., Schultz, J., Wang, P. W., Sevier, L., Carter, M. D., Ryan, P. M., Swain, D. W., Hill, D. N., Nevins, W. M. & Braams, B. J., 2000 Jan 1, In : Nuclear Fusion. 40, SPEC. ISS. 3, p. 575-582 8 p.

Research output: Contribution to journalArticle

146 Citations (Scopus)
2001

Analysis of the operational characteristics of a high-Tc superconducting power supply with the Bi-2223 pancake load

Yoon, Y. S., Kim, H. M., Ahn, M. C., Lee, C., Ko, T. K. & Oh, S. S., 2001 Sep, In : IEEE Transactions on Applied Superconductivity. 11, 3, p. 4071-4077 7 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Design, fabrication and test of a discrete-foil-type superconducting power supply

Kim, H. M., Lee, C., Ko, T. K., Yoon, Y. S., Lee, S. J., Han, T. S. & Oh, S. S., 2001 Jan 1, In : Cryogenics. 41, 3, p. 189-194 6 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
2003

Characteristics of critical current of superconducting solenoid wound with the stacked tape

Ahn, M. C., Lee, S., Kim, M. C., Bae, D. K., Lee, C., Joo, M. & Ko, T. K., 2003 Oct 1, In : Cryogenics. 43, 10-11, p. 555-560 6 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Design, fabrication techniques and test results of 1.2 kV/80 A inductive fault current limiter by using conduction-cooled system

Kang, H., Lee, S., Bae, D. K., Ahn, M. C. & Ko, T. K., 2003 Oct 1, In : Cryogenics. 43, 10-11, p. 621-628 8 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Patterned pyroelectric electron emitters and their feasibility study for lithography applications

Moon, C. W., Kim, D. W., Rosenman, G., Ko, T. K. & Yoo, I. K., 2003 Jun 1, In : Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 42, 6 A, p. 3523-3525 3 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)
2004

Characteristic analysis of solid materials for electrical insulation of HTS magnets

Bae, D. K., Joung, J. M., Baek, S. M., Lee, C. J., Lee, S. J., Ko, T. K. & Kim, S. H., 2004 Jun 1, In : IEEE Transactions on Applied Superconductivity. 14, 2, p. 1189-1193 5 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Current sharing in multi-stacked HTS solenoid coil

Bae, D. K., Yoon, Y. S., Kang, H., Ahn, M. C., Lee, S. & Ko, T. K., 2004 Jun 1, In : IEEE Transactions on Applied Superconductivity. 14, 2, p. 791-795 5 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

DC critical current estimate of the short HTS cable consisted of Bi-2223 tapes

Bae, J. H., Bae, D. K., Cho, J. W., Sim, K. D., Kim, H. J., Seong, K. C. & Ko, T. K., 2004 Jun 1, In : IEEE Transactions on Applied Superconductivity. 14, 2, p. 670-673 4 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Design, fabrication, and test of high-Tc superconducting DC reactor for inductive superconducting fault current limiter

Ahn, M. C., Lee, S., Kang, H., Bae, D. K., Joo, M., Kim, H. S. & Ko, T. K., 2004 Jun 1, In : IEEE Transactions on Applied Superconductivity. 14, 2, p. 827-839 13 p.

Research output: Contribution to journalArticle

19 Citations (Scopus)

Design and cooling characteristic results of cryogenic system for 6.6 kV/200 a inductive fault current limiter

Kang, H., Ahn, M. C., Kim, H. J., Chang, H. M. & Ko, T. K., 2004 Jun 1, In : IEEE Transactions on Applied Superconductivity. 14, 2, p. 883-886 4 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Determination of heater triggering parameters of superconducting power supply with series-connected double-pancake load

Kim, Y. S., Yoon, Y. S., Kim, M. C., Bae, D. K., Ahn, M. C., Cheon, W. Y. & Ko, T. K., 2004 Jun 1, In : IEEE Transactions on Applied Superconductivity. 14, 2, p. 650-653 4 p.

Research output: Contribution to journalArticle

Development and characteristics of persistent mode in HTS magnet

Kim, J. H., Lim, J. H., Joo, J., Choi, S., Lee, S. H., Nah, W., Kang, H. & Ko, T. K., 2004 Oct 1, In : Physica C: Superconductivity and its applications. 412-414, SPEC. ISS., p. 1026-1029 4 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Development of 6.6 kV-200 A DC reactor type superconducting fault current limiter

Lee, S., Kang, H., Bae, D. K., Ahn, M. C., Mun, T., Park, K., Lee, Y. & Ko, T. K., 2004 Jun 1, In : IEEE Transactions on Applied Superconductivity. 14, 2, p. 867-870 4 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)

Present status of the KSTAR superconducting magnet system development

Kim, K., Park, H. K., Park, K. R., Lim, B. S., Lee, S. I., Kim, M. K., Chu, Y., Chung, W. H., Baek, S. H., Choi, J. Y., Yonekawa, H., Chertovskikh, A., Chang, Y. B., Kim, J. S., Kim, G. S., Kim, D. J., Song, N. H., Kim, K. P., Song, Y. J., Woo, I. S. & 9 others, Han, W. S., Lee, D. K., Oh, Y. K., Cho, K. W., Park, J. S., Lee, G. S., Lee, H. J., Ko, T. K. & Lee, S. J., 2004 May 1, In : Journal of the Korean Physical Society. 44, 5 I, p. 1195-1198 4 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)
2005

Design and manufacturing of the large scale High-Tc superconducting DC magnet for the 2.3 MVA SFCL

Bae, D. K., Kang, H., Ahn, M. C., Yoon, Y. S. & Ko, T. K., 2005 Jun 1, In : IEEE Transactions on Applied Superconductivity. 15, 2 PART II, p. 1965-1969 5 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Sub-cooled nitrogen cryogenic cooling system for superconducting fault current limiter by using GM-cryocooler

Kang, H., Kim, H. J., Bae, D. K., Ahn, M. C., Chang, H. M. & Ko, T. K., 2005 Jan 1, In : Cryogenics. 45, 1, p. 65-69 5 p.

Research output: Contribution to journalArticle

20 Citations (Scopus)

The short-circuit characteristics of a DC reactor type superconducting fault current limiter with fault detection and signal control of the power converter

Ahn, M. C., Kang, H., Bae, D. K., Park, D. K., Yoon, Y. S., Lee, S. J. & Ko, T. K., 2005 Jun 1, In : IEEE Transactions on Applied Superconductivity. 15, 2 PART II, p. 2102-2105 4 p.

Research output: Contribution to journalArticle

17 Citations (Scopus)
2006

Analysis of driving mechanism for tiny piezoelectric linear motor

Kang, C. Y., Yoo, K. H., Ko, H. P., Kim, H. J., Ko, T. K. & Yoon, S. J., 2006 Dec 1, In : Journal of Electroceramics. 17, 2-4, p. 609-612 4 p.

Research output: Contribution to journalArticle

17 Citations (Scopus)

Analysis on the thermal and electrical characteristics of impregnating materials for the bifilar winding-type superconducting fault current limiter

Yang, S. E., Bae, D. K., Yoon, K. Y., Yoon, Y. S., Ko, T. K. & Kim, S. H., 2006 May, In : Cryogenics. 46, 5 SPEC. ISS., p. 338-342 5 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

An analysis and short circuit test of various types of Bi-2223 bifilar winding fault current limiting module

Park, D. K., Ahn, M. C., Park, S., Kang, H., Bae, D. K., Yang, S. E., Seok, B. Y. & Ko, T. K., 2006 Jun 1, In : IEEE Transactions on Applied Superconductivity. 16, 2, p. 703-706 4 p., 1642945.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Characteristics analysis of a high-Tc superconducting power supply considering flux creep effect

Yoon, Y. S., Kim, H. M., Joo, M., Bae, D. K., Ahn, M. C. & Ko, T. K., 2006 Sep 1, In : IEEE Transactions on Applied Superconductivity. 16, 3, p. 1918-1923 6 p., 1687912.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Characteristics of a HTS persistent current switch system considering the n-value

Yoon, Y. S., Kim, H. M., Kang, H., Bae, D. K., Ahn, M. C., Yang, S. E., Park, D. K. & Ko, T. K., 2006 Jun, In : IEEE Transactions on Applied Superconductivity. 16, 2, p. 1745-1748 4 p., 1643199.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Design and fabrication of permanent mode magnet by using coated conductor

Lee, H. G., Kim, J. G., Lee, S. W., Kim, W. S., Lee, S. W., Choi, K. D., Hong, G. W. & Ko, T. K., 2006 Oct 1, In : Physica C: Superconductivity and its applications. 445-448, 1-2, p. 1099-1102 4 p.

Research output: Contribution to journalArticle

27 Citations (Scopus)

Design and manufacture of a superconducting fault current limiter with bypass reactor by employing two different types of HTS wires

Ahn, M. C., Bae, D. K., Yang, S. E., Park, D. K., Ko, T. K., Kang, H., Yoon, Y. S., Seok, B. Y. & Sim, K., 2006 Jun 1, In : IEEE Transactions on Applied Superconductivity. 16, 2, p. 707-710 4 p., 1642946.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Design and test of a thermal triggered persistent current system using high temperature superconducting tapes

Park, D. K., Kang, H., Ahn, M. C., Yang, S. E., Yoon, Y. S., Lee, S. J. & Ko, T. K., 2006 Jun 1, In : Journal of Physics: Conference Series. 43, 1, p. 5-8 4 p., 002.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Development of a HTS magnet system for long-run operation test in sub-cooled nitrogen

Kim, T. J., Kang, H., Ahn, M. C., Lee, C., Bae, D. K., Seok, B. Y., Chang, H. M. & Ko, T. K., 2006 Jun 1, In : IEEE Transactions on Applied Superconductivity. 16, 2, p. 1324-1327 4 p., 1643095.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Manufacture and test of small-scale superconducting fault current limiter by using the bifilar winding of coated conductor

Ahn, M. C., Bae, D. K., Yang, S. E., Park, D. K., Ko, T. K., Lee, C., Seok, B. Y. & Chang, H. M., 2006 Jun 1, In : IEEE Transactions on Applied Superconductivity. 16, 2, p. 646-649 4 p., 1642931.

Research output: Contribution to journalArticle

28 Citations (Scopus)

Normal zone propagation characteristics of the HTS wires by heat energy applied

Bae, D. K., Kang, H., Ahn, M. C., Sim, K., Kim, Y. S., Yoon, Y. S. & Ko, T. K., 2006 May, In : Cryogenics. 46, 5 SPEC. ISS., p. 373-377 5 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Quench initiation and propagation characteristics of HTS wires under liquid nitrogen cooling condition

Bae, D. K., Park, D. K., Ahn, M. C., Kang, H., Yoon, Y. S. & Ko, T. K., 2006 Jun 1, In : Journal of Physics: Conference Series. 43, 1, p. 1043-1046 4 p., 255.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Quench propagation characteristics of the liquid nitrogen cooled HTS wires by externally injected heat energy

Yoon, K. Y., Bae, D. K., Kang, H., Ahn, M. C., Lee, S. J., Kim, H. M., Yoon, Y. S. & Ko, T. K., 2006 Jun, In : IEEE Transactions on Applied Superconductivity. 16, 2, p. 1015-1018 4 p., 1643020.

Research output: Contribution to journalArticle

4 Citations (Scopus)

The experimental analysis on the thermal and electrical characteristics of impregnating materials for superconducting magnets

Yang, S. E., Bae, D. K., Kang, H., Ahn, M. C., Park, D. K., Seok, B. Y., Jang, H. M. & Ko, T. K., 2006 Jun 1, In : Journal of Physics: Conference Series. 43, 1, p. 686-689 4 p., 168.

Research output: Contribution to journalArticle

2 Citations (Scopus)